Automatic gas-light governor



(No-M0de1.)

O. GREINER 82; J. GRUPP.

AUTOMATIC GAS LIGHT GOVERNOR.

. Patented Feb. 14,1888.

Uiuwle/ rew'zwm N. PETERS, Fhalolillmgnpher. Wilshhvglon. n, c.

1 NITED STATES CHARLES GREINER AND JACOB GRUPP, OF PHILADELPHIA,PENNSYLVANIA.

PATENT Orrrc,

AUTOMATIC GAS-LIGHT GOVERNOR.

SPECIFICATION forming part of Letters Patent No. 378,050, dated February14, 1888.

' Application filed June 2-1, 1887. Serial No. 242,650. (No mode.)

in Automatic Gas-Light Governors; and we do hereby declare the followingto be a full, clear, and exact description of the invention, referencebeing had to the accompanying drawings,

which form part of this specification.

Our invention has relation to automatic gaslight governors, and has forits object the provision ofmeans for automaticallycutting ofl'the flowof gas from a pipe to a burner if the flame should become extinguishedby anymeans.

other than by the ordinary and proper method of operatinga cook or valveinterposed in the supply-pipe.

Owing to the poisonous character of ordinary illuminating-gas and itsliability to explode when mixed with air, many fatal accidents anddestructive conflagrations have ensued from the accidental or carelessextinguishmeut of gas-flames, as by a draft, by blowing it out, or evenby careless manipulation of the cook or valve t-hrougli which the supplyof the same is governed.

Our invention is designed to obviate all dangel of such accidents; andit consists in the provision of the novel means, hereinafter describedand claimed, for automatically shutting off the flow of gas from a pipeto a burner immediately after the extinguishment of the flame.

In the accompanying drawings, illustrating our invention, Figure 1 is avertical sectional view of ourinlproved gas-light governor, showing thevalve closed. Fig. 2 is a vertical sectional view of the same, showingthe valve opened. Fig. 3 is an elevation, and Fig. 4 a

top view, of our improved governor.

Adesignates the main shell or casing of the device, which contains avalve by means of which the flow of gas is cut off and supports theseveral working parts of the apparatus, as will be presently described.Said shell is hollow and cylindrical, and into its lower end is screweda plug, B, which has a central screwthreaded hole, 7), into which isscrewed the nipple or end of the gas-supply pipe. (Not shown.) The upperend of the casing Ais contracted to form a throat, a, and at the bot tomof said throat is formed a valve-seat, a. Within'this throat a fitsv andslides a short cy- 5 5 lindrical tubular section, 0, the upper end ofwhich receives a tip, I), having-the ordinary slit or orifice for thepassage of the gas. Upon the lower end of thesectionO is formed anannular flange, c, that constitutes the valve of the apparatus'and restsin one position of said section upon the seat a. A short distance abovethe flange c the walls of the section Care perforated at d d to providefor the passage of the gas to Within the same, and'as 6 the section 0fits smoothly in the neck of casing Athe said holes are'out off fromreceiving gas, when the device is, in the position shown in Fig. 1,independently of the valve and valve-seat c a.

Within the casing A, and bearing at one end upon the plug B and at theother upon the bottom of the cylindrical section 0, is a spiral spring,D, that presses the cylindrical section upwardly, so that under anycondition, 7 except when the gas is burning, the flow of the same iscutoff. Around the upper edge of the casing A is formed a flange, A, andupon the top of the said flange are lugs e e c c, which serve to receivepins ff, passing through the ends of arms-E and F. The arm F isstationary; but the arm E is movable upon its pivot f, and its lower endis eccentrically formed,

as atf, and the position of the pivotf is such that as the arm fallsoutwardly the inside edge 8 5 of the eccentric or cam portion f willbear against the cylindrical portion C.

The edge of the cam portionf may be provided with teeth, or may befurnished with any sort of friction-coating desired, so as to make itcatch and bind readily against the cylindrical section 0.

Holes 9 g are formed in the upper ends of, the arms E and F, and throughthe holes is passed a rod, H, which has at one end a head. Jr, the otherbeing screw-threaded and fitted with a nut, h, by means of which thedistance apart of the arms E F may be determinedand regulated.- The rodH, through its expansion and contraction, causes the arm E to move 10oupon its pivot, thereby binding or loosening the section 0, and said rodshould therefore be of some substance susceptible of ready expansion andcontraction under variations of temperature, such as platina, copper, orother suitable refractory metal or other suitable substance.

A groove is formed upon the outside of and near the top of thecylindrical section 0, and a yoke, J, having a central hole, k, andteeth or lugs k k, is passed over the top of the section and securedthereto by pressing the lugs down into the groove. To the ends of theyokeJ are secured wires 1 Z, which pass through holes in the flange A,and to'the wires is secured a ring, L.

Chains or cords may be substituted for the wires Z Z, and their lengthwill be dependent upon the height of the gas-fixture from the floor.

The operation is as follows: The described device being applied to a gaspipe or fixture.

in place of the ordinary gas-burner, and the gas being turned on at thecock or valve, the ring L is pulled down, thereby pulling down thesection 0 and permitting the gas to flow through the holes d d and tothe tip I), where it is ignited. The ring L is held down until by theheat of the flame the rod H is expanded to such extent that the arm E,falling outwardly by its own weight, or being urged outwardly by anattached weight or spring, binds at its lower end against the section 0,thereby holding the same in the position shown in Fig. 2. The partsremain in this position until the gas is extinguished, whereupon the rodH contracting draws up the arm E into the position shown in Fig. 1,thereby releasing its end from contact with the section 0, which latteris then forced upwardly by the spring D, and the flow of gas is therebycut ofl immediately and effectually, and can only be resumed by drawingdown the ring L, as before, and again igniting the gas.

said movable arm being pivoted to the casing A, and having an eccentricor cam end, f 2 which bears against section 0 when the rod H isexpanded, substantially as described.

2. In an automatic gas-light governor or cutofi, the combination, withthe tubular casing A, having an internal valve-seat, a, the hollowcylindrical section 0, sliding in said casing A, and provided with avalve, 0, at its lower end and openings d d in its walls, the yoke J,secured to said section 0, and the wires Z Z and'spring D, of the fixedarm F and movable arm E, the latter being pivoted to said casing andhaving a cam-like end, f", adapted to bear against the section 0, and anexpansible rod, H, through which the movement of said arm is governed,all being constructed, arranged, and operating substantially asdescribed.

In testimony that we claim the foregoing we have hereunto set our handsthis 22d day of June, 1887.

CHARLES GREINER. JACOB GRUPP.

Witnesses:

J 0s. B. CoNNoLLY', R. DALE SPARHAWK.

